package com.edee.bigday.order.config;

import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.Exchange;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.TopicExchange;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;

@Configuration
public class MyMqConfig {



    /**
     * 如果RabbitMQ中不存在，则容器中的Binding、Queue、Exchange都会自动创建。
     * 如果已存在，@Bean中生命的属性发生变化后，也不会覆盖。
     *
     * @return
     */

    @Bean
    public Queue orderReleaseOrderQueue() {
        HashMap<String, Object> arguments = new HashMap<>();
        arguments.put("x-dead-letter-exchange", "order-event-exchange");
        arguments.put("x-dead-letter-routing-key", "order.release.order");
        arguments.put("x-message-ttl", 60000);
        //String name, boolean durable, boolean exclusive, boolean autoDelete,
        //			@Nullable Map<String, Object> arguments
        Queue queue = new Queue("order.delay.queue", true, false, false, arguments);
        return queue;
    }

    @Bean
    public Queue orderDelayQueue() {
        Queue queue = new Queue("order.release.order.queue", true, false, false);
        return queue;
    }

    @Bean
    public Exchange orderEventExchange() {
        //String name, boolean durable, boolean autoDelete, Map<String, Object> arguments
        return new TopicExchange("order-event-exchange", true, false);
    }

    @Bean
    public Binding orderCreateOrderBinding() {
        //String destination, DestinationType destinationType, String exchange, String routingKey,
        //			@Nullable Map<String, Object> arguments
        return new Binding("order.delay.queue", Binding.DestinationType.QUEUE, "order-event-exchange", "order.create.order", null);
    }

    @Bean
    public Binding orderReleaseOrderBinding() {
        return new Binding("order.release.order.queue", Binding.DestinationType.QUEUE, "order-event-exchange", "order.release.order", null);
    }

    /**
     * 订单主动取消的消息发送，直接将订单的交换机order-event-exchange和库存释放队列stock.release.order.queue进行绑定
     */
    @Bean
    public Binding OrderReleaseOtherBinding(){
        //return new Binding("stock.release.order.queue", Binding.DestinationType.QUEUE,"order-event-exchange","order.release.other.#",null);
        //上面的绑定队列有误，应该修改为stock.release.stock.queue:
        return new Binding("stock.release.stock.queue", Binding.DestinationType.QUEUE,"order-event-exchange","order.release.other.#",null);
    }

    @Bean
    public Queue orderSeckillOrderQueue(){
        return new Queue("order.seckill.order.queue",true,false,false);
    }
    @Bean
    public Binding orderSeckillOrderQueueBinding(){
        return new Binding("order.seckill.order.queue",Binding.DestinationType.QUEUE,"order-event-exchange","order.seckill.order",null);
    }
}
